/* 基础设置 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    line-height: 1.6;
}

/* 页面头部 */
.page-header {
    text-align: center;
    padding: 40px 20px;
    background-color: #eef2f3;
    border-bottom: 1px solid #ddd;
}

.page-header h1 {
    font-size: 2.5rem;
    color: #2c3e50;
}

/* 搜索与分类过滤 */
.search-filter-section {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background-color: #fff;
    border-bottom: 1px solid #ddd;
}

.model-search {
    padding: 10px;
    width: 300px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.search-btn {
    padding: 10px 20px;
    background-color: #2c3e50;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.search-btn:hover {
    background-color: #1abc9c;
}

.category-filter {
    display: flex;
    gap: 10px;
}

.category-filter label {
    cursor: pointer;
}

/* 模型卡片布局 */
.model-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    padding: 20px;
}

.model-card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s ease-in-out;
}

.model-card:hover {
    transform: translateY(-5px);
}

.model-card img {
    width: 100%;
    height: auto;
    display: block;
}

.card-body {
    padding: 15px;
}

.card-body h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.download-link {
    display: inline-block;
    margin-top: 10px;
    color: #2c3e50;
    text-decoration: none;
    font-weight: bold;
}

.download-link:hover {
    color: #1abc9c;
}

/* 模型详情 */
.model-detail {
    max-width: 800px;
    margin: 30px auto;
    padding: 20px;
    background-color: #fff;
    border-left: 4px solid #1abc9c;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
}

/* 页面底部 */
.page-footer {
    text-align: center;
    padding: 20px;
    background-color: #eef2f3;
    border-top: 1px solid #ddd;
    margin-top: 40px;
}